high purity magnesium hydroxide
|
Size:
|
325-5000 mesh
|
|
Color:
|
white
|
|
Weight:
|
25kg/bag
|
|
We can offer the high purity magnesium hydroxide.It is a kind of new-type stuff flam retardant and is universally used in polymer materials of rubber, chemical industry, construction material, plastic (polypropylene, polyethylene, PVC and EPDM, etc.), electron, unsaturated polyester, painting and dope, especially in the ventiduct coating cloth for mining, PVC unitary-core convey belt, flame retardance aluminum-plastic plate, flame retardance tarpaulin, PVE wire and cable material, cable sheath for mining, etc., which has the function of smoke-abatement and static resistance with the good effect of flame retardant, can replace the aluminum hydroxide
|
Compositions
|
MG-A
|
|
Mg(OH)2 %
|
98-99.5
|
|
Hydrochloric acid insoluble substance %
|
≤0.05
|
|
Adsorbing water content %
|
＜0.5
|
|
Cl %
|
≤0.1
|
|
Fe %
|
≤0.005
|
|
Al %
|
≤0.005
|
|
Ca %
|
≤0.005
|
|
Si %
|
≤0.005
|
|
K %
|
≤0.005
|
|
Na %
|
≤0.005
|
|
Pb %
|
≤0.001
|
|
As %
|
≤0.001
|
|
Loss on Ignition %
|
≥30
|
|
Whiteness %
|
≥95
|
|
D50（µm）
|
1-20
|
|
Morphology
|
Sphere or other shape
|
******************************************************************************
Magnesium Hydroxide
Physicochemical Properties: White crystalline or powder; and its aqueous solution show alkaline reaction; 2.36g/cm3. It is soluble in diluted acid and ammonium salt solution and almost insoluble in water and alcohol. Its solubility （18℃）in water is 0.0009g/100g. It is easy to absorb carbon dioxide in the air. When it is heated to above 200℃ in alkaline solution, it will become hexagonal crystal system crystalline. At 350℃, it shall decompose into magnesium oxide and water, and change into magnesium oxide by losing water above 500℃.
Use:The main constituent of this product (flame retardant) is the magnesium hydroxide, which is a kind of new-type stuff flam retardant and is universally used in polymer materials of rubber, chemical industry, construction material, plastic (polypropylene, polyethylene, PVC and EPDM, etc.), electron, unsaturated polyester, painting and dope, especially in the ventiduct coating cloth for mining, PVC unitary-core convey belt, flame retardance aluminum-plastic plate, flame retardance tarpaulin, PVE wire and cable material, cable sheath for mining, etc., which has the function of smoke-abatement and static resistance with the good effect of flame retardant, can replace the aluminum hydroxide.
Magnesium hydroxide physicochemical properties
Formula：Mg(OH)2
English name：magnesium hydroxide
Molecular weight：58.3
Density：2.36g/cm3
Color：white crystal or powder
Acidic and basic capacity：its aqueous solution show alkaline reaction
Crystal system：hexagonal crystal system and laminated structure
Refraction rate： 1.561 — 1.581
Volume resistivity： 108 — 1010Ω.cm
Decomposing temperature℃：340
|
Magnesium, as in Mg (OH)2
|
≥95%
|
|
MgO, %
|
≥65
|
|
CaO, %
|
≤1.00
|
|
SiO2, %
|
≤3.00
|
|
Fe2O3 , %
|
≤0.3
|
|
Acid Undissolved Matters, %
|
3±0.5
|
|
Adsorbing water content,%
|
＜0.3
|
|
Loss on Ignition,%
|
≥30
|
|
Whiteness,%
|
≥94°
|
|
Granularity D50
|
＜2.0
|
|
Granularity D90
|
＜5.0
|
|
Click to enlarge image
Related Keywords:
Bookmark / Share this page